Topic:  12-hour outage of GOES-16 GLM products starting June 19, 2023 at 0400Z

Date/Time Issued: July 10, 2023 1800

Product(s) or Data Impacted:  All GOES-16 GLM products distributed via GRB, AWIPS, and PDA (including downstream services such as NODD and CLASS)


Date/Time Initial Impact:  July 19, 2023 0400Z

Date/Time of Expected End: July 19, 2023 1600Z


Length of Event:   12 hours


Details/Specifics of Change: A scheduled flight software update for GOES-16 GLM requiring a reboot of the instrument will result in an outage of all GLM products for up to 12 hours starting at 0400 UTC on July 19, 2023. This software update will bring GOES-16 in line with GOES-18, which is already running the latest software version. Therefore, GOES-18 will not be impacted and will continue to provide nominal data throughout the period that GOES-16 will be unavailable.  


Following the instrument turn-on, image navigation and registration may be slightly degraded for up to 48 hours. This has the potential to cause geolocation errors for GLM events during this time period.


Please note: This activity will be postponed in the event of a critical weather day. It will slip one business day, remaining at the same time of day, until they do not conflict with critical weather day.



Web Site(s) for Applicable Information:  SDM Total Operational Weather Readiness - Satellites (TOWR-S) Virtual Lab Forum


This message was sent by You have been sent this and other notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe, please contact ESPC Help Desk at or (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request.